Added usb peripheral register definitions. It uses some tool macros defined in tools.h
This commit is contained in:
Piotr Esden-Tempski
parent
0c6b661502
commit
cde7d1ce4d
|
|
@ -20,6 +20,7 @@
|
|||
#ifndef LIBOPENSTM32_LIBOPENSTM32_H
|
||||
#define LIBOPENSTM32_LIBOPENSTM32_H
|
||||
|
||||
#include <libopenstm32/tools.h>
|
||||
#include <libopenstm32/common.h>
|
||||
#include <libopenstm32/memorymap.h>
|
||||
#include <libopenstm32/rcc.h>
|
||||
|
|
@ -29,5 +30,6 @@
|
|||
#include <libopenstm32/spi.h>
|
||||
#include <libopenstm32/timer.h>
|
||||
#include <libopenstm32/flash.h>
|
||||
#include <libopenstm32/usb.h>
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -0,0 +1,58 @@
|
|||
/*
|
||||
* This file is part of the libopenstm32 project.
|
||||
*
|
||||
* Copyright (C) 2009 Piotr Esden-Tempski <piotr@esden.net>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef LIBOPENSTM32_TOOLS_H
|
||||
#define LIBOPENSTM32_TOOLS_H
|
||||
|
||||
/******************************************************************************
|
||||
* Register accessors / manipulators
|
||||
******************************************************************************/
|
||||
|
||||
/* Get register content */
|
||||
#define GET_REG(REG) ((u16) *REG)
|
||||
/* Set register content */
|
||||
#define SET_REG(REG, VAL) (*REG = (u16)VAL)
|
||||
/* Clear register bit */
|
||||
#define CLR_REG_BIT(REG, BIT) SET_REG(REG, (~BIT))
|
||||
/* Clear register bit masking out some bits that must not be touched */
|
||||
#define CLR_REG_BIT_MSK(REG, MSK, BIT) SET_REG(REG, (GET_REG(REG) & \
|
||||
MSK & (~BIT)))
|
||||
/* Get masked out bit value */
|
||||
#define GET_REG_BIT(REG, BIT) (GET_REG(REG) & BIT)
|
||||
|
||||
/*
|
||||
* Set/reset a bit in a masked window by using toggle mechanism.
|
||||
*
|
||||
* This means that we look at the bits in the bit window designated by
|
||||
* the mask. If the bit in the masked window is not matching the
|
||||
* bitmask BIT then we write 1 and if the bit in the masked window is
|
||||
* matching the bitmask BIT we write 0.
|
||||
*
|
||||
* TODO: we may need a faster implementation of that one?
|
||||
*/
|
||||
#define TOG_SET_REG_BIT_MSK(REG, MSK, BIT) { \
|
||||
register u16 toggle_mask = GET_REG(REG) & MSK; \
|
||||
register u16 bit_selector; \
|
||||
for(bit_selector = 1; bit_selector; bit_selector <<= 1){ \
|
||||
if((bit_selector & BIT) != 0) toggle_mask ^= bit_selector; \
|
||||
} \
|
||||
SET_REG(REG, toggle_mask); \
|
||||
}
|
||||
|
||||
#endif /* LIBOPENSTM32_TOOLS_H */
|
||||
|
|
@ -0,0 +1,296 @@
|
|||
/*
|
||||
* This file is part of the libopenstm32 project.
|
||||
*
|
||||
* Copyright (C) 2009 Piotr Esden-Tempski <piotr@esden.net>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef LIBOPENSTM32_USB_H
|
||||
#define LIBOPENSTM32_USB_H
|
||||
|
||||
/******************************************************************************
|
||||
* USB base addresses
|
||||
******************************************************************************/
|
||||
|
||||
#define USB_PMA_BASE (0x40006000L) /* USB packet buffer memory base
|
||||
address */
|
||||
|
||||
/******************************************************************************
|
||||
* USB general registers
|
||||
******************************************************************************/
|
||||
|
||||
/* USB Control register */
|
||||
#define USB_CNTR_REG ((volatile u32 *)(USB_DEV_FS_BASE + 0x40))
|
||||
/* USB Interrupt status register */
|
||||
#define USB_ISTR_REG ((volatile u32 *)(USB_DEV_FS_BASE + 0x44))
|
||||
/* USB Frame number register */
|
||||
#define USB_FNR_REG ((volatile u32 *)(USB_DEV_FS_BASE + 0x48))
|
||||
/* USB Device address register */
|
||||
#define USB_DADDR_REG ((volatile u32 *)(USB_DEV_FS_BASE + 0x4C))
|
||||
/* USB Buffer table address register */
|
||||
#define USB_BTABLE_REG ((volatile u32 *)(USB_DEV_FS_BASE + 0x50))
|
||||
/* USB EP register */
|
||||
#define USB_EP_REG(EP) ((volatile u32 *)(USB_DEV_FS_BASE + EP))
|
||||
|
||||
/******************************************************************************
|
||||
* USB control register masks / bits
|
||||
******************************************************************************/
|
||||
|
||||
/* Interrupt mask bits, set to 1 to enable interrupt generation */
|
||||
#define USB_CNTR_CTRM (0x8000)
|
||||
#define USB_CNTR_PMAOVRM (0x4000)
|
||||
#define USB_CNTR_ERRM (0x2000)
|
||||
#define USB_CNTR_WKUPM (0x1000)
|
||||
#define USB_CNTR_SUSPM (0x0800)
|
||||
#define USB_CNTR_RESETM (0x0400)
|
||||
#define USB_CNTR_SOFM (0x0200)
|
||||
#define USB_CNTR_ESOFM (0x0100)
|
||||
|
||||
/* Request/Force bits */
|
||||
|
||||
#define USB_CNTR_RESUME (0x0010) /* Resume request */
|
||||
#define USB_CNTR_FSUSP (0x0008) /* Force suspend */
|
||||
#define USB_CNTR_LP_MODE (0x0004) /* Low-power mode */
|
||||
#define USB_CNTR_PWDN (0x0002) /* Power down */
|
||||
#define USB_CNTR_FRES (0x0001) /* Force reset */
|
||||
|
||||
/******************************************************************************
|
||||
* USB interrupt status register masks / bits
|
||||
******************************************************************************/
|
||||
|
||||
#define USB_ISTR_CTR 0x8000 /* Correct Transfer */
|
||||
#define USB_ISTR_PMAOVR 0x4000 /* Packet Memory Area Over / Underrun */
|
||||
#define USB_ISTR_ERR 0x2000 /* Error */
|
||||
#define USB_ISTR_WKUP 0x1000 /* Wake up */
|
||||
#define USB_ISTR_SUSP 0x0800 /* Suspend mode request */
|
||||
#define USB_ISTR_RESET 0x0400 /* USB RESET request */
|
||||
#define USB_ISTR_SOF 0x0200 /* Start Of Frame */
|
||||
#define USB_ISTR_ESOF 0x0100 /* Expected Start Of Frame */
|
||||
#define USB_ISTR_DIR 0x0010 /* Direction of transaction */
|
||||
#define USB_ISTR_EP_ID 0x000F /* Endpoint Identifier */
|
||||
|
||||
/******************************************************************************
|
||||
* USB interrupt status register manipulators
|
||||
******************************************************************************/
|
||||
|
||||
//#define USB_CLR_ISTR_CTR() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_CTR) /* CTR is read only! */
|
||||
#define USB_CLR_ISTR_PMAOVR() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_PMAOVR)
|
||||
#define USB_CLR_ISTR_ERR() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_ERR)
|
||||
#define USB_CLR_ISTR_WKUP() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_WKUP)
|
||||
#define USB_CLR_ISTR_SUSP() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_SUSP)
|
||||
#define USB_CLR_ISTR_RESET() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_RESET)
|
||||
#define USB_CLR_ISTR_SOF() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_SOF)
|
||||
#define USB_CLR_ISTR_ESOF() CLR_REG_BIT(USB_ISTR_REG, USB_ISTR_ESOF)
|
||||
|
||||
/******************************************************************************
|
||||
* USB device addres register masks / bits
|
||||
******************************************************************************/
|
||||
|
||||
#define USB_DADDR_ENABLE 0x0080
|
||||
#define USB_DADDR_ADDR 0x007F
|
||||
|
||||
/******************************************************************************
|
||||
* USB device addres register manipulators
|
||||
******************************************************************************/
|
||||
|
||||
/******************************************************************************
|
||||
* USB endpoint register offsets
|
||||
******************************************************************************/
|
||||
|
||||
#define USB_EP0 ((u8)0)
|
||||
#define USB_EP1 ((u8)1)
|
||||
#define USB_EP2 ((u8)2)
|
||||
#define USB_EP3 ((u8)3)
|
||||
#define USB_EP4 ((u8)4)
|
||||
#define USB_EP5 ((u8)5)
|
||||
#define USB_EP6 ((u8)6)
|
||||
#define USB_EP7 ((u8)7)
|
||||
|
||||
/******************************************************************************
|
||||
* USB endpoint register masks / bits
|
||||
******************************************************************************/
|
||||
|
||||
/* masks and toggle bits */
|
||||
#define USB_EP_RX_CTR (0x8000) /* Correct transfer RX */
|
||||
#define USB_EP_RX_DTOG (0x4000) /* Data toggle RX */
|
||||
#define USB_EP_RX_STAT (0x3000) /* Endpoint status for RX */
|
||||
|
||||
#define USB_EP_SETUP (0x0800) /* Setup transaction completed */
|
||||
#define USB_EP_TYPE (0x0600) /* Endpoint type */
|
||||
#define USB_EP_KIND (0x0100) /* Endpoint kind.
|
||||
* When set and type=bulk -> double buffer
|
||||
* When set and type=control -> status out
|
||||
*/
|
||||
|
||||
#define USB_EP_TX_CTR (0x0080) /* Correct transfer TX */
|
||||
#define USB_EP_TX_DTOG (0x0040) /* Data toggle TX */
|
||||
#define USB_EP_TX_STAT (0x0030) /* Endpoint status for TX */
|
||||
|
||||
#define USB_EP_ADDR (0x000F) /* Endpoint Address */
|
||||
|
||||
/* Masking all toggle bits */
|
||||
#define USB_EP_NTOGGLE_MSK (USB_EP_RX_CTR | \
|
||||
USB_EP_SETUP | \
|
||||
USB_EP_TYPE | \
|
||||
USB_EP_KIND | \
|
||||
USB_EP_TX_CTR | \
|
||||
USB_EP_ADDR)
|
||||
|
||||
/* All non toggle bits plus EP_RX toggle bits */
|
||||
#define USB_EP_RX_STAT_TOG_MSK (USB_EP_RX_STAT | USB_EP_NTOGGLE_MSK)
|
||||
/* All non toggle bits plus EP_TX toggle bits */
|
||||
#define USB_EP_TX_STAT_TOG_MSK (USB_EP_TX_STAT | USB_EP_NTOGGLE_MSK)
|
||||
|
||||
/* Endpoint status bits for USB_EP_RX_STAT bit field */
|
||||
#define USB_EP_RX_STAT_DISABLED (0x0000)
|
||||
#define USB_EP_RX_STAT_STALL (0x1000)
|
||||
#define USB_EP_RX_STAT_NAK (0x2000)
|
||||
#define USB_EP_RX_STAT_VALID (0x3000)
|
||||
|
||||
/* Endpoint status bits for USB_EP_TX_STAT bit field */
|
||||
#define USB_EP_TX_STAT_DISABLED (0x0000)
|
||||
#define USB_EP_TX_STAT_STALL (0x0010)
|
||||
#define USB_EP_TX_STAT_NAK (0x0020)
|
||||
#define USB_EP_TX_STAT_VALID (0x0030)
|
||||
|
||||
/* Endpoint type bits for USB_EP_TYPE bit field */
|
||||
#define USB_EP_TYPE_BULK (0x0000)
|
||||
#define USB_EP_TYPE_CONTROL (0x0200)
|
||||
#define USB_EP_TYPE_ISO (0x0400)
|
||||
#define USB_EP_TYPE_INTERRUPT (0x0600)
|
||||
|
||||
/******************************************************************************
|
||||
* USB endpoint register manipulators
|
||||
******************************************************************************/
|
||||
|
||||
/* Set USB endpoint tx/rx status.
|
||||
*
|
||||
* USB status field is changed using an awkward toggle mechanism, that
|
||||
* is why we use some helper macros for that.
|
||||
*/
|
||||
#define USB_SET_EP_RX_STAT(EP, STAT) \
|
||||
TOG_SET_REG_BIT_MSK(USB_EP_REG(EP), \
|
||||
USB_EP_RX_STAT_TOG_MSK, \
|
||||
STAT)
|
||||
|
||||
#define USB_SET_EP_TX_STAT(EP, STAT) \
|
||||
TOG_SET_REG_BIT_MSK(USB_EP_REG(EP), \
|
||||
USB_EP_TX_STAT_TOG_MSK, \
|
||||
STAT)
|
||||
|
||||
/* Macros for clearing and setting USB endpoint register bits that do
|
||||
* not use the toggle mechanism.
|
||||
*
|
||||
* Because the register contains some bits that use the toggle
|
||||
* mechanism we need a helper macro here. Otherwise the code gets
|
||||
* really messy.
|
||||
*/
|
||||
#define USB_CLR_EP_NTOGGLE_BIT(EP, BIT) \
|
||||
CLR_REG_BIT_MSK(USB_EP_REG(EP), \
|
||||
USB_EP_NTOGGLE_MSK, \
|
||||
BIT)
|
||||
|
||||
#define USB_CLR_EP_RX_CTR(EP) \
|
||||
USB_CLR_EP_NTOGGLE_BIT(EP, \
|
||||
USB_EP_RX_CTR)
|
||||
|
||||
#define USB_CLR_EP_TX_CTR(EP) \
|
||||
USB_CLR_EP_NTOGGLE_BIT(EP, \
|
||||
USB_EP_TX_CTR)
|
||||
|
||||
#define USB_SET_EP_TYPE(EP, TYPE) \
|
||||
SET_REG(USB_EP_REG(EP), \
|
||||
(GET_REG(USB_EP_REG(EP)) & \
|
||||
(USB_EP_NTOGGLE_MSK & \
|
||||
(~USB_EP_TYPE))) | TYPE)
|
||||
|
||||
#define USB_SET_EP_KIND(EP) \
|
||||
SET_REG(USB_EP_REG(EP), \
|
||||
(GET_REG(USB_EP_REG(EP)) & \
|
||||
(USB_EP_NTOGGLE_MSK & \
|
||||
(~USB_EP_KIND))) | USB_EP_KIND)
|
||||
|
||||
#define USB_CLR_EP_KIND(EP) \
|
||||
SET_REG(USB_EP_REG(EP), \
|
||||
(GET_REG(USB_EP_REG(EP)) & \
|
||||
(USB_EP_NTOGGLE_MSK & \
|
||||
(~USB_EP_KIND))))
|
||||
|
||||
#define USB_SET_EP_STAT_OUT(EP) \
|
||||
USB_SET_EP_KIND(EP)
|
||||
|
||||
#define USB_CLR_EP_STAT_OUT(EP) \
|
||||
USB_CLR_EP_KIND(EP)
|
||||
|
||||
#define USB_SET_EP_ADDR(EP, ADDR) \
|
||||
SET_REG(USB_EP_REG(EP), \
|
||||
((GET_REG(USB_EP_REG(EP)) & \
|
||||
(USB_EP_NTOGGLE_MSK & \
|
||||
(~USB_EP_ADDR))) | ADDR))
|
||||
|
||||
/******************************************************************************
|
||||
* USB BTABLE registers
|
||||
******************************************************************************/
|
||||
#define USB_GET_BTABLE GET_REG(USB_BTABLE_REG)
|
||||
|
||||
#define USB_EP_TX_ADDR(EP) ((u32 *)(USB_PMA_BASE + \
|
||||
(USB_GET_BTABLE+EP*8 ) * 2))
|
||||
|
||||
#define USB_EP_TX_COUNT(EP) ((u32 *)(USB_PMA_BASE + \
|
||||
(USB_GET_BTABLE+EP*8+2) * 2))
|
||||
|
||||
#define USB_EP_RX_ADDR(EP) ((u32 *)(USB_PMA_BASE + \
|
||||
(USB_GET_BTABLE+EP*8+4) * 2))
|
||||
|
||||
#define USB_EP_RX_COUNT(EP) ((u32 *)(USB_PMA_BASE + \
|
||||
(USB_GET_BTABLE+EP*8+6) * 2))
|
||||
|
||||
/******************************************************************************
|
||||
* USB BTABLE manipulators
|
||||
******************************************************************************/
|
||||
|
||||
#define USB_GET_EP_TX_ADDR(EP) \
|
||||
GET_REG(USB_EP_TX_ADDR(EP))
|
||||
|
||||
#define USB_GET_EP_TX_COUNT(EP) \
|
||||
GET_REG(USB_EP_TX_COUNT(EP))
|
||||
|
||||
#define USB_GET_EP_RX_ADDR(EP) \
|
||||
GET_REG(USB_EP_RX_ADDR(EP))
|
||||
|
||||
#define USB_GET_EP_RX_COUNT(EP) \
|
||||
GET_REG(USB_EP_RX_COUNT(EP))
|
||||
|
||||
#define USB_SET_EP_TX_ADDR(EP, ADDR) \
|
||||
SET_REG(USB_EP_TX_ADDR(EP), ADDR)
|
||||
|
||||
#define USB_SET_EP_TX_COUNT(EP, COUNT) \
|
||||
SET_REG(USB_EP_TX_COUNT(EP), COUNT)
|
||||
|
||||
#define USB_SET_EP_RX_ADDR(EP, ADDR) \
|
||||
SET_REG(USB_EP_RX_ADDR(EP), ADDR)
|
||||
|
||||
#define USB_SET_EP_RX_COUNT(EP, COUNT) \
|
||||
SET_REG(USB_EP_RX_COUNT(EP), COUNT)
|
||||
|
||||
#define USB_GET_EP_TX_BUFF(EP) \
|
||||
(USB_PMA_BASE + \
|
||||
(u8 *)(USB_GET_EP_TX_ADDR(EP) * 2))
|
||||
|
||||
#define USB_GET_EP_RX_BUFF(EP) \
|
||||
(USB_PMA_BASE + \
|
||||
(u8 *)(USB_GET_EP_RX_ADDR(EP) * 2))
|
||||
|
||||
#endif /* LIBOPENSTM32_USB_H */
|
||||
Loading…
Reference in New Issue